We do not charge you anything to make this call. Because the access number is an Iowa based number, your phone plan will dictate how much it will cost you to call Iowa. Since most phone plans include free long distance, your call is most likely free!
In three easy looking steps (so long as you’re living in the USA) you can dial a rake of countries for free. If you’ve got relatives living in the US that like to phone home often then this could be the perfect solution for them, especially if they get good rates on phone Iowa or even free long-distance phone calls (depending on your given price plan).